Influence of surface roughness on magnetic properties of CoTbNi ternary alloy films

Basumatary, Rajmoni; Behera, Pratap; Basumatary, Bablu; Brahma, B.; Ravi, S.; Brahma, R.; Srivastava, S. K.

doi:10.1016/j.micrna.2022.207491

Cited by 12 publications

(1 citation statement)

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“…The study emphasizes the benefits of CaO, such as its non‐corrosive nature, high basicity, and reusability, while also exploring methods to enhance catalytic activity and stability through modification techniques. The review concludes that CaO‐based catalysts offer a promising alternative to commercial heterogeneous catalysts for sustainable biodiesel production at an industrial scale, given their environmental friendliness and economic viability [19] . Ruatpuia et al.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Jatropha Oil Transesterification into Methyl Esters under Supercritical Methanol Environment using Advanced Heterogeneous Catalysts

Demir,

Akgün

2024

ChemistrySelect

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The rationale for this study lies in the investigation of the transesterification of crude Jatropha curcas oil into biodiesel using advanced heterogeneous catalysts under supercritical methanol conditions. The oxides of strontium, lanthanum, and zinc (SrO, La2O3, and ZnO) were synthesized with varying loadings (2 wt %, 6 wt %, and 10 wt %) on γ‐Al2O3 using the wet impregnation method followed by calcination at 900 °C. To gain a comprehensive understanding of the prepared catalysts, multiple analytical techniques were employed, including scanning electron microscopy (SEM) with energy‐dispersive X‐ray spectroscopy (EDS), Brunauer‐Emmett‐Teller (BET) surface area analysis, X‐ray diffraction (XRD), and Fourier transform infrared (FT‐IR) spectroscopy. The performance of the catalysts was assessed through the measurement of biodiesel yield, where the SrO/γ‐Al2O3, ZnO/γ‐Al2O3, and La2O3/γ‐Al2O3 systems produced yields of 97.54 %, 97.49 %, and 97.36 %, respectively, under identical reaction conditions of a 1 : 40 oil to methanol molar ratio, 10 wt % catalyst loading amount, 300 °C reaction temperature, 90 bar reaction pressure, and a reaction time of 3 min. Despite a minimal decrease of 0.05 %, zinc oxide catalysts remain highly attractive due to their favorable price position compared to strontium. Additionally, the catalyst can be reused up to 12 times with minimal loss in biodiesel yield (~2 %).

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Section: Introductionmentioning

confidence: 99%